Header header
string system_version
string kernel_version
string robot_version
float64 cpu_usage
float64 memery_usage
int64 api_alive
int64 business_alive
int64 database_alive
int64 camera_alive
int64 drive_alive
int64 rtk_alive
int64 slam_alive
int64 tbox_alive
int64 screen_alive
int64 map_alive
int64 rads_ready
int64 err
string ext1
string ext2
string ext3
int64  ext4
int64  ext5
int64  ext6